Nozzle for pneumatic cleaners.



J.F.B0YN. NOZZLB POR PNBUMATIC CLEANERS. APPLICATION FILED 00T.3,v19l2.

Lmg@ fatemewugmwm 5mm/Lto@ M@ www UmrED STATE j V@llttlt JOHN r. BoYN, or N'EWYORK, N. Y.

NOZZLE FOR PNEUMATICI CLEANERS.

Application filed October 3, 1912. Serial No. 723,697.

has for its object primarily of nozzle designed to be employed especially upon theA end 'of the tube of a pneumatic cleaner into which 1s admitted the dust, or refusesfrcm the article being cleaned, and wherein is provided a yieldingly movable' broom which is adapted to penetrate between the strands of the fiber, or nap of the article when the cleaner is guided over its surface, thereby agit-ating the dust settled therein so that the suctlional action of the currents ot air may effectually remove .all the particles.

A furt-herobject of the ,invention is, to

provide a nozzle of compact and eiicient construction, and which may be made in any desired shape so 'as to be adapted for use in conjunction with pneumatic cleaners of va rious types.

A'practical embodimentof the invention is represented in the accompanying drawing forming a part of this specificationin which similar characters of reference indicate corresponding part's in all the views, the said invention being more fully described hereinafter, and then pointed out in the appended claims.

In the drawings, Figure I1 is a perspective view of one i'orm of nozzle embodying my invention. Fig-2 is a side elevation, partly sectional and vpartly broken away, of the device. Fig. 3 is a section taken on the line lI--ll ot' Fig. 2. Fig. 4 is a lfragmentary side view of one end of the broom. Fig. i3 is a. fragmentary inverted plan of one end of the back of the broom, and Fig. 6 is an end view of the broom.

The nozzle, br device comprises a chambered head, or casing 10 which is preferably substantially rectangular in form whereby end walls 11 and .12 are provided, though said chambered heady may be of any desire shape.- The head 10 may be formed. with a ywith the chamber interiorly Vand this neck serves to permit the nozzle to the ends of the curved top, as 13, and an open under side so as to provide a mout as 14:. Projecting preferably upon an incline Jfrom the curved top 13 of the head is a tubular neck, or pipe 15 the passage through which communicates of said head,

be applied upon the tube, as 16, of the usual, or any preferred form of pneumatic To each of the end walls 11 and 1,2 of the chambered head 1() are two vertically disposed guide strips, or plates 17 and 18, and the pairs of said plates extend interiorly of the head in opposed Lalined arrangement. Each pair-,of the plates 17, and 18 are spaced apart, as shown, whereby grooves 19 are provided therebetween, and in said grooves is a movable broom 9.0 which serves to agitate the dust, or refuse which may be settled between the ber, or nap of a carpet, or rug, or other similar article of woven -fabric when the nozzle is being guided thereover.

The broom 2() has a back, 21, composed of anelo-ngated plate `of metal which is bent through its longitudinal center and retlexively disposed relatively 'to each other,whereby t-he bristles may be ,secured between the opposing edge portions thereof, and said back is of sutlicient lengt-h so' that its ends are slidably disposed in the groove 19 between the plates 17 and 18. Between the opposed edge portions of the'back 21 are clamped or fastened strands of one or more rows of bristles 22 of fine pieces of wire, or other stili flexible material. i

Serving to permit the broom 2O to be yieldingly ,movable in the chamber `head 10 of the nozzle, upon the top of the back 21 thereof is secured the central part of a spring 23. The end portions of` the spring 23 are curved upwardly so as to contact with the underneath surface of the top 13 of the head, thereby permitting said spring to normally force the broom down upon the surface to be cleaned.

In the foregoing description, l have -embodied the preferred form o-my invention, but I' do not wish tobe understood as limiting myself' thereto, as I am aware that modiiications may be made therein without departing from the principle, or sacrificing any of the advantages of this invention, therefore l reserve to myself the right to make such changes as fairly fall within the scope thereof.

cleaner.

Having thus described my claim as new .and desire .to secure by Letters Patent `l. In a nozzle for pneumatic cleaners, the

combination of a housing substantially arch shaped in cross section'and having closed ends, a platefixed upon the inner surface of each of the end Walls and provided with a vertical groove, a brushhaving its ends slidinvention, I

)I "VVitnessest' i .an open bot-,tom and provided with an air outlet, each of said side Walls having a verti-` cally disposed groove on the interior surface thereof, a removable 'brush disposed lon'gitndinall'y` within the housing,` and having its ends disposed 'Within the said grooves,

whereby the brush is slidably held Within the grooves, a leaf spring provided between the brush and the top of said housing, and secured. to the brush whereby a yielding pressure is exerted upon thev brush.

This specification si ned and witnessed this second day of Octo er, A. D. 1912.

' JOHN Fl BOYN.

M. DERMODY. 

